{"id":"CVE-2026-89859","state":"PUBLISHED","title":"scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak\n\nqla2x00_do_dport_diagnostics() allocates the qla_dport_diag response\nbuffer with kmalloc_obj() (non-zeroing) and, on success, copies the full\nsizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound\nsg_copy_to_buffer() only fills as many bytes as the user request payload\nprovides, and qla26xx_dport_diagnostics() zeroes only dd->buf. The\noptions and unused[] fields are therefore copied out uninitialized,\nleaking kernel heap contents to user space.\n\nAllocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2().","publishedAt":"2026-09-16T10:31:31.554Z","updatedAt":"2026-10-30T12:33:19.549Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"eeef4fa993b3f962de9b45999f12ff25a5c79ce7","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"504b177ad58c45be7e1cfa81f9b42f7f040737c5","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"c3e4c716909a053391b06a9a816c8588b652e3d2","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"2ecc30066c2284d2ed11bbd576ec97156b384054","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"5dfc77099c7d9fde9520a229794b0154d7ccccc1","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"d6e2411516bb95e52cb74c9c56b60ad2548a2730","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"9fc03be982763a131913f84fe73b240ae45bca37","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"a152edab3854f01dd2daf3eaf8f32cbabdb3834e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_bsg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.8","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_bsg.c"]}],"references":["https://git.kernel.org/stable/c/eeef4fa993b3f962de9b45999f12ff25a5c79ce7","https://git.kernel.org/stable/c/504b177ad58c45be7e1cfa81f9b42f7f040737c5","https://git.kernel.org/stable/c/c3e4c716909a053391b06a9a816c8588b652e3d2","https://git.kernel.org/stable/c/2ecc30066c2284d2ed11bbd576ec97156b384054","https://git.kernel.org/stable/c/5dfc77099c7d9fde9520a229794b0154d7ccccc1","https://git.kernel.org/stable/c/d6e2411516bb95e52cb74c9c56b60ad2548a2730","https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37","https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e"],"weaknesses":[],"ingestedAt":"2026-10-30T12:52:04.348Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89859.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89859","state":"PUBLISHED","datePublished":"2026-09-16T10:31:31.554Z","dateUpdated":"2026-10-30T12:33:19.549Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.771Z"},"containers":{"cna":{"title":"scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak\n\nqla2x00_do_dport_diagnostics() allocates the qla_dport_diag response\nbuffer with kmalloc_obj() (non-zeroing) and, on success, copies the full\nsizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound\nsg_copy_to_buffer() only fills as many bytes as the user request payload\nprovides, and qla26xx_dport_diagnostics() zeroes only dd->buf. The\noptions and unused[] fields are therefore copied out uninitialized,\nleaking kernel heap contents to user space.\n\nAllocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"eeef4fa993b3f962de9b45999f12ff25a5c79ce7","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"504b177ad58c45be7e1cfa81f9b42f7f040737c5","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"c3e4c716909a053391b06a9a816c8588b652e3d2","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"2ecc30066c2284d2ed11bbd576ec97156b384054","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"5dfc77099c7d9fde9520a229794b0154d7ccccc1","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"d6e2411516bb95e52cb74c9c56b60ad2548a2730","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"9fc03be982763a131913f84fe73b240ae45bca37","versionType":"git"},{"version":"ec89146215d124c429bff84b498dccdc4919ffa7","status":"affected","lessThan":"a152edab3854f01dd2daf3eaf8f32cbabdb3834e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_bsg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.8","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_bsg.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/eeef4fa993b3f962de9b45999f12ff25a5c79ce7"},{"url":"https://git.kernel.org/stable/c/504b177ad58c45be7e1cfa81f9b42f7f040737c5"},{"url":"https://git.kernel.org/stable/c/c3e4c716909a053391b06a9a816c8588b652e3d2"},{"url":"https://git.kernel.org/stable/c/2ecc30066c2284d2ed11bbd576ec97156b384054"},{"url":"https://git.kernel.org/stable/c/5dfc77099c7d9fde9520a229794b0154d7ccccc1"},{"url":"https://git.kernel.org/stable/c/d6e2411516bb95e52cb74c9c56b60ad2548a2730"},{"url":"https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37"},{"url":"https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:33:19.549Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}